Question

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What is the meaning of heart?












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Answer 1

The heart is a hollow, muscular organ in vertebrates that pumps blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The heart is composed of cardiac muscle, an involuntary muscle tissue which is found only within this organ.

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Answer 2

Answer

A hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers (as in humans), with two atria and two ventricles.

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